Home / 15,931.54-23,827.38-14,188.78

Finding the Fourth Proportional to 15,931.54, 23,827.38 and 14,188.78

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Solution

The fourth proportional to 15,931.54, 23,827.38 and 14,188.78 is: 21,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931.54 : 23,827.38 = 14,188.78 : x
  2. Step 2: Convert to fraction form
    15,931.54/23,827.38 = 14,188.78/x
  3. Step 3: Cross multiply
    15,931.54x = 23,827.38 × 14,188.78
  4. Step 4: Simplify right side
    15,931.54x = 338,081,452.80
  5. Step 5: Solve for x
    x = 338,081,452.80/15,931.54
  6. Step 6: Final answer
    x = 21,220.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.